What you're hearing are the original samples used to create Stickerbush Symphony from Donkey Kong Country 2 Diddy's Kong Quest, combined with the music instruction data from the game, plus mixing and mastering magic for a perfect recreation of what a studio recording would have sounded like.

All remasters currently progressed:
https://www.dropbox.com/sh/g70cosiqz1...

Song composed by David Wise, restored by Jammin' Sam Miller